jeromq setSocketOption is not availble on 0.5.2 api

Hello i am trying to access the setSocketOption method which i see is available on the 0.5.2 api but there is not exist on my code. What's happening? any help

<dependency>
      <groupId>org.zeromq</groupId>
      <artifactId>jeromq</artifactId>
      <version>0.5.2</version>
    </dependency>